Rename programmer registration functions

Register_programmer suggests that we register a programmer. However,
that function registers a master for a given bus type, and a programmer
may support multiple masters (e.g. SPI, FWH). Rename a few other
functions to be more consistent.

Corresponding to flashrom svn r1831.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
diff --git a/gfxnvidia.c b/gfxnvidia.c
index 2a5c7ae..1e5a23a 100644
--- a/gfxnvidia.c
+++ b/gfxnvidia.c
@@ -66,7 +66,7 @@
 				  chipaddr addr);
 static uint8_t gfxnvidia_chip_readb(const struct flashctx *flash,
 				    const chipaddr addr);
-static const struct par_programmer par_programmer_gfxnvidia = {
+static const struct par_master par_master_gfxnvidia = {
 		.chip_readb		= gfxnvidia_chip_readb,
 		.chip_readw		= fallback_chip_readw,
 		.chip_readl		= fallback_chip_readl,
@@ -107,7 +107,7 @@
 
 	/* Write/erase doesn't work. */
 	programmer_may_write = 0;
-	register_par_programmer(&par_programmer_gfxnvidia, BUS_PARALLEL);
+	register_par_master(&par_master_gfxnvidia, BUS_PARALLEL);
 
 	return 0;
 }